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J. MI LEWIS METHOD OF PROCESSING PIPES Filed Oct. 18, 1950 3Sheets-Sheet l U R Q 4 m... 'lHH'HHHHHHILH '1 t v N ATTORNE V Feb. 14,1956 J. M. LEWIS METHOD OF PROCESSING PIPES 3 Sheets-Sheet 2 Filed Oct.18, 1950 IN VEN TOR. Q 6 52 BY ATTORNEY Feb. 14, 1956 J. M. LEWIS METHODOF PROCESSING PIPES Filed Oct. 18, 1950 3 Sheets-Sheet 5 INVENF'OR.

61/14) Wail? United States Patent NIETHOD 0F PROCESSING PIPES Jesse M.Lewis, Tulsa, Okla, assignor to Williams Brothers Company, Tulsa, Okla.,a corporation of Nevada Application October 18, 1950, Serial No. 190,8566 Claims. (31. 117-96) This invention relates to a method of processingpipes, cylindrical objects and the like, and more particularly, but notby way of limitation, to a method and means for internally painting, orcoating pipes.

It is well known that the service life of steel pipes, disposedunderground, or otherwise, particularly when used to convey water or thelike, is materially increased when the pipes are provided with asuitable coat of paint, bituminous or asphaltic material on the internalsurface thereof. Heretofore, the seemingly best known method ofinternally coating a pipe involved the provision of a suitable trough,usually V-shaped in cross section, and filling the trough with thedesired coating material. The trough was then supported in the manner ofa cantilever and inserted in the joint of pipe to be coated. The pipewas then rotated and simultaneously the trough was tilted to pour thecoating material onto the inner surface of the pipe. The rotary motionimparted to the pipe obviously caused the coating material to spreadover the inner surface of the pipe in a relatively even coat. It will beappreciated, however, that this method has numerous practicallimitations, the most prominent of which is the lengths of pipe that canbe coated in one operation.

The present invention contemplates a novel method of applying paint orany suitable coating material to the internal surface of a pipe forextending the service life thereof. It is contemplated to provide ahorizontally disposed tubular boom over which one or more joints of pipemay be telescoped. The boom is provided with a suitable spray head onthe outer end thereof supplied with coating material through the boom.While the spray head is dispensing the coating material, the pipe ismoved rectilinearly off of the boom, and is simultaneously rotated inorder that the coating material may be applied to the inner walls of thepipe in a helical path. Suitable machinery is provided to impart thedesired movement to the pipe and to supply coating material to the boom.

This invention also contemplates a novel boom and spray head whereby thecoating material may be applied to the pipe at the desired temperatureto assure an even and uninterrupted coat on the pipe, and to preventfreezing of the coating material in the spray head or boom when not inuse.

An important object of this invention is to provide a practical andeiiicient yet simple method of internally coating pipes.

Another object of this invention is to provide a method of internallycoating pipes whereby the coating material isapplied evenly in anuninterrupted path through the entire length of the pipe.

A further object of this invention is to provide a method of internallycoating pipes whereby the coating material is applied at a predeterminedtemperature, and in a helical path to assure maximum protection for thepipe.

Another object of this invention is to provide a meth- 2,734,832Patented Feb. 14, 1956 0d of internally coating pipes whereby aplurality of in terconnected pipe joints may be coated in one operation.

A still further object of this invention is to provide a novel sprayhead for applying coating material to the internal surface of a pipe.

Another object of this invention is to provide a novel spray headeificient in operation and economical to manufacture.

A further object of this invention is to provide a tubular boom adaptedto supply coating material .to a spray head in the pipe coatingoperation.

Other objects and advantages of the invention will be evident from thefollowing detailed description, read in conjunction with theaccompanying drawings, which illustrate my invention.

Figure 1 is a partial schematic layout showing various operationstations in a pipe processing yard.

Figure 2 is an extension of the schematic layout shown in Figure 1 forthe remainder of the pipe processing yard.

Figure 3 is a schematic plan view of the necessary apparatus forinternally coating a pipe and illustrating a pipe removed from thecoating boom.

Figure 4 is a side elevational view of the apparatus shown in Figure 3,showing a pipe telescoped over the coating boom.

Figure 5 is a perspective view of part of the coating apparatusillustrating the movement of a pipe over the coating boom.

Figure 6 is a longitudinal sectional view of a novel spray head and aportion of the coating boom.

Referring to the drawings in detail, and particularly Fig. 1, a joint orsection of pipe 2 is placed transversely on a pair of suitable spacedpipe skits 4 (see left hand side of Fig. 1) preparatory to beingprocessed as will be hereinafter set forth. It will be understood thatthe pipe processing plant is preferably located near the source of thesupply of the pipe 2, and is usually located near the site where thepipe is to be strung, or used, to reduce the possibility of damaging theprocessed pipe during transportation.

The first step normally performed in the processing of a pipe is theinternal cleaning thereof. In the processing yard shown schematically inFigs. 1 and 2, the joint of pipe 2 is rolled or moved along the pipeskids 4 to a cleaning station indicated generally at A. At station A, apair of parallel tracks 5 are disposed transversely to the pipe skids 4.A pair of suitable nesting cars 6 and 7 are disposed on the tracks 5 onopposite sides of the pipe skids 4. The nesting cars 6 and 7 are adaptedto move into abutting relationship (not shown) with the opposite ends ofthe pipe 2 to retain the pipe in a stationary position during thecleaning operation.

The cleaning is accomplished by inserting into the pipe 11 adapted tomove along the tracks 5 for moving the cleaning head 8 through the pipe2.

After cleaning, the pipe 2 is moved in any suitable manner along thepipe skids 4 to a welding station indicated generally at B. An internallineup clamp 12 is provided at station B to clamp and align either twoor thre joints of the pipe 2 (two being shown but not limited thereto).When the joints of pipe 2 are clamped and aligned by the line-up clamp12, a stringer head is run on the joints. It will be noted that the pipeskids 4 are disposed further apart on the right hand ,side of station Bto accommodate the double jointed pipe 2.

The pipe or welded sections of the pipe are then ansgssa moved along theextended pipe skids 4 to another weld- V ing'station indicated generallyat C to complete the welding operation. A pair of suitable trusses 13are provided at station C transversely to the pipe skids 4. The trusses13 are of sufiicient length to permit the movement of the double jointedpipe 2 thereunder. A suitable auto matic welder 14 is suspended from thetrusses 13 to efficiently complete the welding of the joints of pipe 2'.

The cleaned and welded pipe 2 is then moved along the extended pipeskids 4 to a priming station indicated generally at D (Fig. 2). Thepriming is accomplished by moving annular spray head 15 through the pipe2. The spray head 15 is provided on the end of an elongated handle 16 topermit the insertion and withdrawal of the spray head 15 from the pipe2. The end 17 of the handle 16 is supported by a carriage 18 on astationary runway 19' disposed transversely to the pipe skids 4. Thehandle 16 is also supported by a carriage 20 on a nesting car 21. Thenesting car 21 is adapted to move along a pair of parallel tracks 22disposed transversely to the pipe skids 4 and into abutting relation(not shown) with one end of the pipe 2. It will be apparent that whenthe spray head 15 is moved through the pipe 2, the carri'age 20 willrest on the inner surface of the pipe 2 to support the spray head 15 inaligned relationship with the pipe. In applying a priming coat to theinner periphery of the pipe 2, the spray head 15 is first movedcompletely through the pipe 2. The priming material is turned on bysuitable connections (not shown) and the spray head 15 ejects thepriming material in a complete 360 arc. As the priming material is beingejected, therefrom, the spray head 15 is removed from the pipe 2 to theposition shown in Fig. 2. The pipe 2 is then again moved along the pipeskids 4 to an internal coating station indicated generally at E.

The skids 4 are interrupted at station E (Figs. 3 and 4) providing spacefor a pair of parallel rails 23 disposed transversely to the skids 4. Apair of nesting cars 24 and 25 are provided on the rails 23 and areadapted to move thereon while supporting the pipe 2. The rear car 25 isprovided with a suitable engine (not shown) for driving the car alongthe rails 23. The engine on the car 25 is also adapted to drive a pairof transversely disposed rollers 26 supporting the rear end 27 of thepipe 2. The rollers 26 may be operated either independently of themovement of the car 25 or simultaneously therewith, and are adapted torotate the pipe 2 as well as support the rear end 27 thereof. The frontcar 24 is provided with a pair of transversely disposed idler rollers 28supporting the forward end 29 of the pipe 2 to permit free rotation ofthe pipe. It will be readily appreciated that the rear car 25 will tendto move out from under the pipe 2 when moving to the right (Figs. 3 and4), and will tend to move along underneath the pipe 2 when moving in theopposite direction, because of the limited contact between the rollers26 and the pipe. Therefore, the front and rear cars 24 and 25 may beinterconnected, and suitable thrust rollers (not shown) are provided oneach car in contact with the opposite ends of the pipe 2 to assure thesimultaneous movement of the pipe with the cars.

The rails 23 extend beneath and are in alignment with a horizontallydisposed tubular boom 30. The boom 30 is supported at one end 31 bysuitable braces 32. The boom is provided with a plurality oflongitudinally spaced hooks 33 (Fig. 5) on the upper surface thereofadapted to be engaged by a plurality of hangers 34. Each hanger 34 ispivotally carried by an A-frame 35 arranged in multiples for supportingthe boom 30. The hooks'33 open toward the end 31 of the boom 30 in orderthat when the pipe'2 is telescoped over the-tubular boom 30, as will behereinatfer set forth, and the forward end 29 of the pipe 2 willstrike'the hangers 34 and disengage the hangers from the hooks 33; Thehangers 34 will thereby be swung upwardly to permit the completetaediiing of the pipe 2 over the boom.30 as shown in Fig.4. The.

boom 30 is also provided with a plurality of self-aligning rollers 36(Fig. 5) on the lower surface thereof in spaced relation to the hooks33. The rollers 36 contact the inner walls of the pipe 2 when the pipeis telescoped over the boom 30 to support the boom, and to align theboom 30 with the pipe 2.

The boom 30 (Fig. 6) is composed of three concentrically disposed pipesor conduits 37, 38 and 39. The cen; ter pipe 37 provides a supplyconduit or, passageway for the coating material and is suitablyinterconnected-by a conduit 40 (Figs. 3 and 4) with acoating material ordope supply pot shown schematically at 41. A suitable pump 42 isinterposed in the conduit'40 to force the dope under pressure into thesupply pipe 37.

As is well known, the coating material normally used on pipe lines is abituminous or asphaltic material whiph solidifies at a relatively hightemperature, thereforeithe dope pot 41 is of the usual typehavingbca'ting" niean'sf (not shown) therein for maintaining the dopeatapredef termined temperature. When the dope is not beingtsupplied tothe spray head 43 (Figs. 4 and 6) as will bemore fully hereinafter setforth, the dope is returned through a plurality of apertures 44 (Fig. 6)provided in thepip'e 37 adjacent the end 45 thereof, and hence throughthe annulus 46 provided between the pipes 37 and 38. Acon;

duit 47 (Figs. 3 and 4) itnerconnects the intermediate;

pipe 38 with the dope pot 41 to permit the return of the unused dope tothe pot for reheating and reuse.

To maintain the dope for circulating in the boom at a substantiallyconstant temperature, steam is' injected into the annulus 48' (Fig. "6)provided between the pipes 38 and 39. The steam is supplied by asuitable steam generator indicated schematically at 49 (Figs. 3 andthrough a conduit 50 to the annulus 48. It is manifest that the steamsupplied to the annulus 48 may be of sufiicient temperature to preventthe freezing of the dope in the cylindrical boom 30.

The outermost end 51 (Fig. 6) of the tube 30'is1provided with a blindflange 52 secured to a mating flange 53 in turn secured to one end 54 ofthe spray head 43. The spray head 43 is composed of preferably twoconcentric pipes 55 and 56 comparable in size to therpipes} 38 and 39 ofthe boom 30: The flange 52is provided with a suitable tapered valve seat57 communicating'wi'th the pipe 37. A conicalvalve 58 co0perates withthe'valve: seat. 57 to alternately permit and preclude new of the dopeor coating material from the supply pipe 37 into the pipe 55 of thespray head 43 as will be more fully hereinafter set forth. The valve 58is carried by a' valve' stem 59 extending longitudinally through thespray head 43 and having a suitable manipulating handle (Won the, outerend 61 thereof. The valve stem 59 and valve 58 are maintained in thecorrect operating position byfa sleeve or bushing 62 secured by a cage63'disposed' the pipe 55 in spaced relation to the end 54' of the spray"head 43.

The outer end 64 of the spray head 43 is provided a flange 65 secured toan end plate 66 and a bonnet 67'.

The end plate '66 is provided withan aperture'68'ih the central portionthereof slidably receiving the valve'steni 59. Suitable packing 69 isdisposed around the shaft 59 in a boss 70 provided on the plate 66concentric with the aperture 68. The packing 69 is retained in s ealiiig f position by a packing nut 71 threaded in theboss 70.

The bonnet 67 is provided'with a threaded'aper'ture 72.

in th'ecentral portion thereof to receive a threaded portion '73 of theshaft 59 adjacent the outer end 61' thereof.

It is readily seen that upon rotation of the handle 68 in one direction,the threads 73 cooperating with the threaded aperture 72 will cause'mev'em'enter the: shaft 59 m valve 58 away from the valve seat 57 andfallowl dope tofio'w' from the supply pipe'37 into thepipe' 55. Rotationof the handle 60- in the opposite direction will,

of course, move the valve 58 onto the valve seat 57 to preclude the flowof the dope into the pipe 55. The sleeve 62 maintains the valve 58concentric with the valve seat 57 to assure eflicient closing of thevalve.

It will be obvious to those skilled in the art, that the valve stem 59and valve 58 may be actuated by means other than the handle 60, such asa pneumatic cylinder and plunger arrangement (not shown) for example.The present invention is therefore not limited to the specific meansshown.

The pipes 55 and 56 of the spray head 43 are provided with a pluralityof aligned apertures 74 along the lower surfaces thereof. The apertures74 are disposed in spaced relation, and are arranged over essentiallythe entire length of the spray head 43. A nozzle 75 is secured in eachpair of apertures 74 to provide outlets for the dope from the inner pipe55. Each nozzle 75 is flared at its outer end 76 to disperse the dopeflowing therethrough, thereby assuring an uninterrupted application ofthe dope from one end of the spray head 43 to the opposite end thereof.It will be apparent that the nozzles 75 may be straight instead offlared if desired, and disposed in closer relationship to providecomplete coverage over-the entire length of the head 43. The nozzles 75are arranged along the lower surface of the spray head 43 to obtain acomplete drainage of the dope from the head when the valve 58 is closedas above set forth, thereby assuring efiicient operation of the head 43upon a subsequent opening of the valve 58. The steam injected into theannulus 48 of the boom 30 is transferred into the annulus 77, providedbetween the pipes 55 and 56 of the spray head 43, through a plurality ofaligned and circumferentially spaced apertures 78 provided in theflanges 52 and 53. The steam present in the annulus 77 will obviouslytend to maintain the dope flowing through the pipe 55 and nozzles 75 atthe desired temperature. To provide a drain for the steam from the boom30 and spray head 43, the boom 30 is disposed at a slight angle from thehorizontal. As the steam condenses, it flows by gravity to the lower end31 (Fig. 3) of boom 30 and through a suitable drain line (not shown)back to the steam generator 49. It will be noted that the apertures 78(Fig. 6) are in proximity with the inner surface of the pipe 56,therefore very little if any condensate will accumulate in the annulus77 of the spray head 43.

Operation After the pipe 2 has been rolled or moved down the skids 4 tostation E as previously set forth, the pipe 2 is loaded onto the nestingcars 24 and 25 with the end 27 of the pipe 2 on the rollers 26 and theend 29 thereof on the rollers 28 as shown in Fig. 3. The rails 23 may beset below the level of the skids 4 in order that the top of the cars 24and 25 will be even with the top of the skids 4 to facilitate theloading of the pipe 2 on the cars. The engine (not shown) on the car 25is then started to move the cars 24 and 25 and the pipe 2 toward theboom 30. As the pipe 2 telescopes over the boom 30, the end 29 of thepipe 2 will knock the hangers 34 (Fig. 5) upwardly out of the path ofthe pipe as previously set forth, and the self-aligning wheels 36 willroll along the lower inner surface of the pipe 2 to support the boom 30therein. The pipe 2 is moved over the boom 30 to the position shown inFig. 4, premitting access to the spray head 43. It will be understoodthat the dope pump 42 has previously been placed in operation tocirculate the hot dope through the boom 30.

The valve 58 is then removed from the valve seat 57 through the mediumof the valve stem 59 and handle 60 to start the flow of dope through thespray head 43. Essentially simultaneous with the opening of the valve58, the pipe 2 is placed in rotation through the medium of the rollers26 and the engine (not shown). When the pipe 2 has reached the desiredrotational speed, and the flow of dope through the nozzles 75 of thespray head 43 has reached the desired velocity, the pipe 2 is startedmoving off of the boom 30 as illustrated in Fig. 5. The pipe 2 may, ifdesired, be placed in rotation simultaneously with the rectilinearmovement thereof, depending upon the horsepower of the engine (notshown) disposed on the car 25. In actual practice however, it has beenfound desirable to start the rotation of the pipe 2 previous to movingthe pipe rectilinearly, due to the limitations on the size of the enginewhich may be used. This invention is not limited to the time of placingthe pipe 2 in rotation, however, since this feature merely depends uponthe size of the engine (not shown) on the car 25.

As the pipe 2 is moved off of the boom 30 and simultaneously rotated,the spray head 43 will apply the dope in a helical path on the innerwalls of the pipe throughout the length thereof. It will be readilyappreciated that the rotational speed of the pipe 2 may be properlycorrelated with the rectilinear speed thereof to obtain a slightoverlapping of the dope upon each turn of the pipe, thereby assuring acontinuous coat of the dope on the pipe. The flared nozzles 75 will alsotend to assure that no voids will appear in the coating material. As thedope is applied to the pipe 2, the dope will obviously be rotatedsimultaneous with the pipe, and the resulting centrifugal force willtend to spread the dope with an even and uniform coating without voidsor air bubbles therein.

As prevously stated, as the pipe 2 is moved off the boom 39, the hangers34 will engage the hooks 33 to support the boom 30. After the pipe 2 hasbeen moved completely off of the boom 30, the flow of dope through thespray head 43 is stopped by seating thevalve 58 on the valve seat 57 aspreviously set forth. The dope will then merely be recirculated to thedope pot 41 until the spray head 43 is subsequently used.

After the pipe 2 is moved free of the boom 30 to the position shown inFig. 3, the rotary motion of the pipe 2 is continued until the coatingmaterial has solidified thereon. In addition, air may be injected intoone end of the pipe to speed up the drying of the coating material ifdesired. The pipe 2 is then removed from the nesting cars 24 and 25 ontothe skids 4 to the right of station E as shown in Fig. 1.

The pipe 2 is then moved along the skids 4 to the ends thereof where thepipe is loaded onto trucks or the like (not shown) for transportation tothe job.

From the foregoing, it is apparent that the present in vention providesa practical and efficient method of internally coating a pipe whereinthe pipe is telescoped onto a coating boom having a spray head on theouter end thereof; the pipe so disposed is placed in rotation and movedrectilinearly off of the boom while coating material is being ejectedfrom the spray head in order to apply a layer of coating material in ahelical path onto the inner surface of the pipe. The coating material isapplied evenly and uninterruptedly throughout the length of the pipe ata predetermined temperature to obtain maximum protection for the pipe.The coating material is devoid of voids or bubbles and a coat ofpredetermined thickness is obtained. 7

It should also be apparent that the present invention provides a novelcoating boom and spray head for maintaining the coating material at apredetermined and constant temperature at all times, whether the coatingmaterial is being used or merely recirculated. It is apparent thecoating material will not solidify in the boom or spray head, and thatthe coating material will be ejected in a controlled path.

Changes may be made in the combination and arrangement of parts asheretofore set forth in the specification and shown in the drawings, itbeing understood that any modification in the precise embodiment of theinvention may be made within the scope of the following claims withoutdeparting from the spirit of the invention.

I claim:

1. In a method of internally coating a pipe section of unusual lengthfor flow of petroleum products therethr'o ug h by use of a coating boomhaving a spray head on the outer end'thereof and consisting ofsuspending the boom in an essentially horizontal position at a pluralityof releasably longitudinally spaced supporting positions, telescopingthe pipe over the spray head and boom, simultaneously releasing thesuspended boom progressively as the pipe passes the spaced supportingpositions during the telescoping operation, supplying the spray headwith coating material through the boom, spraying the coating materialonto the inner walls or" the pipe while moving the pipe off of the boom,simultaneously rotating the pipe in timed relation with the rectilinearmovement thereof to apply the coating material in a helical path, andcontinuing the rotation of the pipe after removal from the boom untilthe coating material solidifies thereon.

2. In a method of internally coating 21 pipe of unusual length for flowof petroleum products therethrough by use of a coating boom having aspray head on the outer end thereof consisting of suspending the boom inan essentially horizontal position through a plurality of releasablylongitudinally spaced supports therefor, telescoping the pipe over thespray head and boom, simultaneously releasing the suspended boomprogressively as the pipe passes a spaced support during the telescopingoperation, supplying the spray head with coating material through theboom, spraying the coating material onto the inner walls of the pipeWhile moving the pipe off of the boom, simultaneously rotating the pipein timed relation with the rectilinear movement thereof to apply thecoating material in a helical path, continuing the rotation of the pipeafter removal from the boom until the coating material solidifiesthereon, and injecting air into the pipe to accelerate thesolidification of the coating material.

3. In a method of internally coating a plurality of interconnectedjoints of pipe of unusual length for flow of petroleum productstherethrough consisting of telescoping the joints of pipe over a sprayboom and supported at a multiple of longitudinally spaced points forreleasable suspension in a horizontal plane, disengaging the spray boomfrom its suspended state progressively during the telescoping operation,supplying coating material to the spray boom, ejecting coating materialfrom the spray boom in an essentially longitudinal stream onto the innersurface of the pipe, moving the joints of pipe oit of the boom, andsimultaneously rotating the joints of pipe to apply the coating materialin an overlapping helical path on the inner surface of the pipe.

4. In a method of internally coating a plurality of connected pipesections of large diameter and proportionate length utilized for how ofpetroleum products therethrough with a releasable suspended coating boomhaving a spray head on the outer end thereof consisting of telescopingthe pipe over-the boom, releasing the boom for horizontally supportingthe boom in the pipe, translating the pipe off the boom over the sprayhead and simultaneously rotating the pipe while the spray head isejecting coating material, whereby the coating material is applied in ahelical path on the inner surface of the pipe.

5. In a method of internally coating a pipe of large dian'ieter and ofsubstantial length for flow of petroleum products therethrough by use ofa coating beam having a spray head on the outer end thereof, whichconsists of suspending the boom in an esentially horizontal position,telescoping the" pipe over the spray head a'ntl'the boom,disengaging'the boom from its suspended state during the telescopingmovement of the pipe, supporting the disen ga'ged boom in the pipewhenin telescopic position, spraying the coating material onto the innerwalls of the pipe while moving the pipe in a rectilinear path along theboom, and simultaneously rotatingthe pipe in timed relation with therectilinear movement to supply the coating material in a helical path.

6. A method of internally coating a pipe section of large diameter andproportionate length normally uti-" lized for discharge of petroleumproducts therethrough by use of a horizontally suspended coating boomhaving a spray head on the outer end thereof, which consists oftelescoping the pipe over the boom and spray head, successivelyreleasing the boom at a plurality of longitudinal supporting positionsduring. the telescoping movement thereover, supplying the spray headwith coating material through the boom, spraying the coating materialonto the inner walls of the pipe while movingthe pipe continually oir ofthe boom, and simultaneously rotating thepipe in timed relation with therectilinear telescoping mov ment thereof to apply the coating materialin a helical path.

References Cited in the file of this patent Great Britain Dec. 1, 1938

1. IN A METHOD OF INTERNALLY COATING A PIPE SECTION OF UNUSAL LENGTH FORFLOW OF PETROLEUM PRODUCTS THERETHROUGH BY USE OF A COATING BOOM HAVINGA SPRAY HEAD ON THE OUTER END THEREOF AND CONSISTING OF SUSPENDING THEBOOM IN AN ESSENTIALLY HORIZONTAL POSITION AT A PLURALITY OF RELEASABLYLONGITUDINALLY SPACED SUPPORTING POSISTIONS, TELESCOPING THE PIPE OVERTHE SPRAY HEAD AND BOOM, SIMULTANEOUSLY RELEASING THE SUSPENDED BOOMPROGRESSIVELY AS THE PIPE PASSES THE SPACED SUPPORTING POSITIONS DURINGTHE TELESCOPING OPERATION, SUPPLYING THE SPRAY HEAD WITH COATINGMATERIAL THROUGH THE BOOM, SPRAYING THE COATING MATERIAL ONTO THE INNERWALLS OF THE PIPE WHILE MOVING THE PIPE OFF OF THE BOOM, SIMULTANEOUSLY